Receives and displays the WWVB radio controlled time and date Display of extensive weather data, in all cases with programmable alarm functions for certain weather conditions as well as records of all min/max values along with time and date of their recordings Indoor and outdoor temperature displays in degrees Fahrenheit or Celsius Indoor and outdoor relative humidity displays Air pressure reading in inHg or hPa, absolute or relative Detailed display of rainfall data in 1 hour, 24 hours, total since last reset in mm or inch Wind speed in mph, km/h, m/s, knots or Beaufort Wind direction display with LCD compass as well as numerical Wind chill temperature display Dew point temperature display Weather forecast display by weather icons Weather tendency indicator Storm warning alarm LED backlight Simultaneous display of all weather data with individual settings by the user COM port for easy connection to your PC Software & RS232 cable All the weather data from the base station and up to 175 sets of weather history data with user adjustable measuring intervals can be recorded and uploaded to your PC Specifications: INDOOR TEMP Measuring range: 32 to 176 F (0 to 80 C) Resolution: 0.1 Accuracy: 2 F (1 C) OUTDOOR TEMP Measuring range: -22 to 176 F (-30 to 80 C) Resolution: 0.1 Accuracy: 2 F (1 C) RELATIVE HUMIDITY Measuring range: 5% to 95% RH Resolution: 1% RH Accuracy: 8% AIR PRESSURE Range: 23.62 to 32.48 inHg (800 to 1100 hPa) Resolution: 0.03 inHg (1 mb) Accuracy: 0.03% (1 hPa) WIND SPEED Measuring range: 0 to 124 mph (0 to 200 km/h) Resolution: 0.1 mph (0.1 km/h) Accuracy: 3%, 0.6 mph (3%, 1 km/h) WIND DIRECTION Measuring range: 0 to 359 Resolution: 5 Graphical resolution: 22.5 RAINFALL Measuring range: 0 to 157.4" (0 to 3,999 mm) Resolution: <0.02" (0.5 mm) Accuracy: 2%, 0.04" (2%, 1 mm) GENERAL SPECS Measuring interval: 3 minutes Range in open space: Max. 330 ft. (100 m) Clock: 12 or 24 hour display with date Transmission frequency: 433.92 MHz Power source: 4 "AA" batteries (not included) Display unit dimensions: 8.5" x 6.38" x 1.13" Supplied With: Base receiver station Three outdoor sensors: Thermo-hygrometer, Wind, & Rain Optional wired connection for data transfer to base receiver station Wireless weather station software in CD-ROM format for transfer of data to PC PC RS232 serial port cable AC/DC power adapter